Iii Symposium on Agricultural and Agroindustrial Waste Management March 12-14, 2013-sao Pedro, Sp, Brazil Effect of Cod/n Ratio on Treatment of Swine Wastewater
نویسندگان
چکیده
The aim of the present work was to evaluate the effect of the carbon/nitrogen (COD/N) ratio on the implementation of technologies treatment of swine wastewater (SW). The results show that the chemical processes are efficient for N removal (up to 99%) contained in SW when COD/N ratio is higher than 10 g/g. However, these processes are inefficient in COD removal (< 33%). COD/N ratio parameter is the key for the implementation of the biological process. Swine wastewater with high COD/N ratio (> 10 g/g) is recommended for anaerobic digestion then COD removal is ranged between 45% to 85%. On the other hand, when anaerobic digestion is implemented at COD/N ratio lower than 5 g/g, advanced process for nitrogen removal is required (i. e. PND or anammox, among others).
منابع مشابه
Iii Symposium on Agricultural and Agroindustrial Waste Management March 12-14, 2013-sao Pedro, Sp, Brazil Bioactive Compounds of Spent Coffee Grounds, a Coffee Industrial Residue
Spent coffee grounds (SCG) are the main residues from the soluble coffee industry. The objective of this work was to evaluate different extraction methods of oil and diterpenes (kahweol and cafestol) from SCG, such as solid-liquid extraction, supercritical extraction or direct saponification, as well as to determine the phenolic composition and antioxidant capacities SCG and defatted SCG. Among...
متن کاملBlastocyst Morphology Holds Clues Concerning The Chromosomal Status of The Embryo
Background Embryo morphology has been proposed as an alternative marker of chromosomal status. The objective of this retrospective cohort study was to investigate the association between the chromosomal status on day 3 of embryo development and blastocyst morphology.Embryo morphology has been proposed as an alternative marker of chromosomal status. The objective of this retrospective cohort stu...
متن کاملEvaluation of granular anaerobic ammonium oxidation process for the disposal of pre-treated swine manure
With rising environmental concerns on potable water safety and eutrophication, increased media attention and tighter environmental regulations, managing animal waste in an environmentally responsible and economically feasible way can be a challenge. In this study, the possibility of using granular anammox process for ammonia removal from swine waste treatment water was investigated. A rapid dec...
متن کاملApplication of Iron Electrode in Textile Industry Wastewater Treatment Using Electro-fenton Technique: Experimental and Statistical Study
The application of synthetic colors in textile industries and their entry into the water and groundwater is an environmental problem because of being very toxic material. The synthetic colors which are used in textile dyeing (plyacrilic and polyester) are usually dispersing colorants. They derive the azo and anthraquinone chemicals. Electro-Fenton process is an efficient technique which can deg...
متن کاملEffect of Dissolved Oxygen and Chemical Oxygen Demand to Nitrogen Ratios on the Partial Nitrification/Denitrification Process in Moving bed Biofilm Reactors
Partial nitrification was reported to be technically feasible and economically favorable, especially for wastewaterwith high ammonium concentration or low C/N ratio. In this study, the effect of dissolved oxygen (DO)and influent ratio of chemical oxygen demand to nitrogen (COD/N) ratio on biological nitrogen removal fromsynthetic wastewater was investigated. Experiments were c...
متن کامل